Vacuum cleaner



FIG. 1 is a top, right-side, and front view of a vacuum cleaner, showing the new design.

FIG. 2 is a front elevation view of the vacuum cleaner.

FIG. 3 is a right-side elevation view of the vacuum cleaner.

FIG. 4 is a rear elevation view of the vacuum cleaner.

FIG. 5 is a left-side elevation view of the vacuum cleaner; and,

FIG. 6 is a top plan view of the vacuum cleaner.

The broken lines represent portions of the vacuum cleaner that form no part of the claimed design. 

CLAIM The ornamental design for a vacuum cleaner, as shown and described. 